Apparatus for tapping mains.



PATE'NTED DEC. 10, 1907. w. H. VAN WINKLE.

APPARATUS. FOR TAPPING MAINS.

APPLIUATION FILED OUT. 30, 1905.

In Ven tor Attorneys.

islet (v.1 lflli ll ll. X \Yl X K LE. l N EWAR K, NEW JERSEY.

APPARATUS FGR TAPPING MAINS.

erpp T all idiom it may concern:

Be it known that. l. WALTER H. tux WD- K133. a citizen of the UnitedStates, residing *tween the two halves of the sleeve.

at )lewark, in the county of Essex and State of X'ew Jersey, haveinvented a certain new and useful Apparatus for Tapping Mains, ofwhichthe following is a description.

The object of my invention is to produce asleeve for tapping machinesfor tapping water mains and the like, and makingbranch ci'Jnnectionsvtherewith without withdrawing the pressure from such mains, which willbe more eileetive and more economical in use.

in the accompanying drawing Figure 1 is a top view showing the tappingmachine applied for making the branch connection, the sleeve being insections at one end, and Fig. 2 is a vertical s ction through aportionof the apparatus. 7

in both of the views like parts are designated by the same referencecharacters,

1 is the main or pipe which contains the water or other tluid underpressure; and which it is desired to provide with a branch connectionwithout withdrawing the pressure from the main or disturbing the how ofthe fluid therethrough. The sleeve is composed of two halves 2-3, one ofwhich is provided with a branch coupling t having a flange 5. to whichthe branch valve casing is bolted. The parts 23 of the sleeve areprovided with ilunges 6-7, which have narrow meeting or abuttingsurfaces 3 at their inner ends and are beveled outwardly beyond thispoint on their inner surfaces so as to form V-shaped gaps 83 between theflanges. Between these i l-a a pass bolts 11.) for chi-niping the ilangtogether, and between the narrow or abutting surfaces 8 are placedstrips 11 of lead or other suitable material. The lead strips .11 areplaced between the surfaces 8 and thetwo parts of the sleeve are drawntogether by the bolts 10, squeezing the strips 11 and making tightjoints be- The abutting surfaces R it will be understood are planed orotherwise finished. By making these surfaces narrow the pressure exertedby the clamping bolts is concentrated upon the relatively narrow stripsand hence a better joint is formed. The suriees are planed surfaces. sothat. the lead strip may be driven in against the main by a l it'vbit.call:- ing tool if desired. The sleeve is slightly ler than the main 1having, however, a cy dricul form like that oi the main withSpecification of Letters Patent.

tiivi filed October 30, 1905. $erial110. 284.943.

only aslight separationbetweenithomain and ilillliclltfl bore oi thesleeve.- The ends of the cylindrical sleeve are,,pr.ovi; ledw th calkinghubs .12 having ealkinggrooveszoir the inner side fOPlQCOlVlIlg betweenthehiih and main 1 suitable callzings 13. '.lhis.call ing at the end ofthe hubs makes a permanent and tight connection between the .niainandthe sleeve at its ends so as to preventv leakage. It ha been usualheretofore to provide against leakage between the cylinder sleevePatented Dee." 10;:1907j1i and the main by filling the space betweenjthesleeve and the main throughout its length with a lead filling upon whichthe sleeve is clamped, relying upon securing a tight joint between thesleeve and the main around-the opening of the branch coupling.

to make, especially in the caseof sleeves for mains of large size.

' In lieu. of .the lead. packing eXtendi1ig EjllCll a. 3011M. however,is imperfect-and expensive through the. entire length oi'the sleevedpro*i-(le a filling or tam ping '1 lot oaltun or other suitable material,which{ex-tends from. base of the calking 13 a sullicient distance inwardto form adam or backing for the callting 13. The space around the sleeveand between the filling H may be tilled with cement or other suitablematerial 1."). This cement may be introduced in the liquid form by meansof the pipe 16, extending through one of the parts of the sleeve. Thispipe may be of suilicientlength to secure an adequate pressure of cementwithin the sleeve. To prtw'ent escape of the cement through the branchcoupling l the edge of the latter is formed with a groove 1 within whichmay he placed. a tznnping of oalturn or other suit able material 18. Anopening or vent l9 permits escape of air from the interior of thesleeve.

in tapping a main with my improved device the sleeve which is slightlylarger than the main has its separated halves brought together in thedesired position upon the main to give the branch connectionv its properdirection. The separate halvies are secured together by the boltspassing through the diverging flanges with the surfaces 8 upon thestrips 11. These strips 11 may be driven against the side of the main bya suitable ealking cool if desired. The tanipings 14 and 18 may beinserted if desired before the parts are assembled." The hubs at theends of the sleeve are henca-lked with ead and. the liquid cement 18 runin through the pipe I in tlhewell'lmown' manner 16. Thismay' be pouredin until it begins-to-- escape through the vent 19, whereupon theventq's closed by a plug and the supply of cement is continued until thepipe '16 1S filled.)

. the-sleeve is secured to the main, the'valve 1'0 casing. securedto'the flange 5, on the branch connection by means of a flange 21 and atapping machine of the ordinary type I is secured to the flange 22 atthe other e d of cylindricalfo'rm conforming to the shape. of

the'val've casing. he pipe is then ta ped which cuts a disk out 'of'theside of the pipe,

.; v the piece rem being withdrawn with the tappingimachine.

,' The saw and bit of the tapping machine, are

20 then Withdrawn and the'va v ting offthe'escape of'the Water u movalof the tapping'machine.

ve'is closed shutof the valve casing and the branch pipe is run 25oflfrom the valve casing.

Having-now described my inve tion what.

I claim as new and desire to secure by Let' said sleeve being dividedinto longitudinal partshaving diverging flanges adjacent to the'dividingedges, rowplane abutting. surfaces; and calkmg' 3t strips, the saidstrips -1 between theabut 4. flanges, the, said bolts. through-thebetween such surfaces, and the 'acter of the surfaces permitting tbefcalked against the y means of a saw.

' ved from the side'of the pipe inner side, tamping strips a on the reahe ppi machine is'then unbolted from the flange 22 and n ar-j;

ting surfaces, bolts c seizing the diverging flanges outside of the autting'sni'faces, the

location of-the bolts being considerably onts'trips may be the moreeffectually compressed lane char- I e strips to -2. ;A sleeve for ta;inggmachine's having a I the ma' and slightly larger than the main,- andhavin a branch pipe connected thereto, calking hu s on the extremitiesof the sleeve, the said hubs having calking coves on the jacent to 'thebranch pipe, a tamping strip adjacent to each .end of the sleevelandvinside of the calking groove, a lead calking within each groove andoutside of the last named tamping strip and-a filling of cement betweenthe sleeve and themain, the said filling occupying the space betweentamping strips. This s ecification signe and witnessed this 3rd ay ofOctober, 1905.

l/VALTER H. VAN WINKLE.

Witnesses:

LEONARD H. DYER, JNO. Rom". TAYLOR.

ee side of theabutting surfaceswhereby the

